In this article written by Jacobo Rodríguez, the author of the book GLSL Essentials, we will learn how to set up the shaders from the host application side.
OpenGL 4.3 is a C language API that bases its design in encapsulating objects in opaque handles that represents abstract concepts (from the user's point of view) such as textures, shaders, vertex buffers, and so on. In order to render something using OpenGL, we have to create those objects, associate our data to them, and issue the required OpenGL commands to set them as active, and in the last term, launch the draw call.
Let's define an important computer graphics concept: a rendering batch. A rendering batch is the geometry set that will be rendered along with the textures, OpenGL's states and shaders. Once we have all that data ready, we can issue the drawing command to the GPU, and hopefully (if we did everything correctly) watch the rendering in our screen.
The order of the creation of the different OpenGL objects is not relevant. You can first create the vertex buffer or the shaders, or first the textures and then the shaders. I will use the following order just for teaching purposes:
- Vertex array objects
Then, I will put all together and render the batch.Read GLSL – How to Set up the Shaders from the Host Application Side in full
Introduced as a part of the HTML 3 standard, and using the title attribute as its text, tooltips are a common element used to provide context within a page. You could find them in use in a variety of situations, although it is most likely that they will be found when providing assistance in correcting errors as part of the submission of a form (particularly when it concerns payment for products!).Read Working with Tooltips in full
This article created by Andros T. Sturgeon and Shoban Kumar, authors of the book Getting Started with Paint.NET, will provide a quick overview of Paint.NET, some of its functions, and how to install the program using a step-by-step approach. It also goes over the main window and functions of Paint.NET
Paint.NET is a free, reliable program that rivals the most expensive photo editing programs on the market. Now, let us dive into the basic concepts of this software.
In this article will cover a general review of Paint.NET and what you need to do to get it, install it, and prepare it for use.
The topics covered are as follows:
- System requirements
- Downloading and installing Paint.NET
Nothing captures the attention more than an interesting image. If you take an amazing picture with any camera, chances are you will have to process it on some level.
Whether you add a filter, change the color, or add an effect; a small change can turn an average image into a great one. Paint.NET is a Windows-based image editing program that gives you the ability to manipulate images professionally. It rivals similar software that can cost hundreds of dollars. The best part about Paint.NET is that it is a freeware, meaning it's completely free.Read Welcome to Paint.NET in full
In this article by Richard Grimmett, author of the book BeagleBone Robotic Projects, the author has explained how to control the robot.Read Making the Unit Very Mobile - Controlling Legged Movement in full
In this article, by David Wolff, author of OpenGL 4 Shading Language Cookbook Second Edition, we will cover the steps needed to compile, link, and use GLSL shaders within an OpenGL program. It also covers how to send data to shaders using attributes and uniform variables, and the use of the GLM library for mathematics support. Every modern OpenGL program today requires a function loader. We will also cover the use of GLLoadGen, a relatively new and easy-to-use OpenGL loader generator.Read Getting Started with GLSL in full
This article, by Chandrasekhar Mankala and Ganesh Mahadevan V., the authors of the book SAP HANA Cookbook, highlights the SAP HANA architecture and its features.Read SAP HANA Architecture in full
In this article, by Baya Dewald, one of the three authors of the book SQL Server Analysis Services 2012 Cube Development Cookbook we will cover:
- SSAS instance con figuration options
- Creating and dropping databases
- Monitoring SSAS instance using Activity Viewer
- Monitoring SSAS instance using DMVs
- Cancelling a session
- Checking whether cubes are accessible
- Checking SSAS object sizes programmatically
- Backup and restore
- Detaching and attaching databases